Samsung SDI and Columbia University publish paper on lithium-metal battery breakthrough in Joule
Samsung SDI, in partnership with Columbia University, has developed a new gel polymer electrolyte that significantly improves the lifespan and safety of lithium-metal batteries.
- 1.6 times over NCA lithium-ion
- only several dozen cycles
What Happened
Samsung SDI announced a joint research project with its domestic R&D center, SDI R&D America, and Columbia University that has developed a new fluorine-based gel polymer electrolyte for lithium-metal batteries. The electrolyte forms a stable interphase on the anode surface, suppressing dendrite formation that has limited battery lifespan to only several dozen cycles. The findings were published in the latest issue of Joule, a leading energy science journal.
1.6 timesof NCA lithium-ion batteries
Lithium-metal batteries offer more than 1.6 times the energy density of conventional NCA lithium-ion batteries, but commercialization has been limited by short charge-discharge cycle life.
“The publication in Joule provides academic validation of our technology that improves the safety of lithium-l batteries, which had long been considered a key weakness.”
Why this matters
This breakthrough brings lithium-metal batteries, which offer over 1.6 times the energy density of conventional lithium-ion batteries, closer to commercialization for applications like next-generation wearable devices.
Terms in This Story
- Lithium-metal battery
- A next-generation battery that uses lithium metal as the anode, offering higher energy density than conventional lithium-ion batteries.
- Gel polymer electrolyte
- A semi-solid electrolyte that combines a polymer matrix with a liquid electrolyte, improving safety and stability.
- Dendrite formation
- The growth of needle-like lithium crystals that can cause short circuits and reduce battery lifespan.
- NCA lithium-ion battery
- A common lithium-ion battery chemistry using nickel, cobalt, and aluminum in the cathode.
Summarised from the linked release; details can be imperfect — always verify against the original source.